Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company has an Azure subscription with 200 virtual machines. The compliance team requires that all virtual machines have diagnostic settings enabled to send metrics and logs to a central Log Analytics workspace. The team wants Azure to automatically configure these diagnostic settings on any VM that currently lacks them, without manual intervention. Which Azure Policy effect should the team use in the policy definition?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Audit
Audit only logs whether a resource is compliant or non-compliant; it does not make any changes to the resource. It would not automatically configure the diagnostic settings.
B
Distractor review
Deny
Deny blocks the creation or modification of a resource that does not meet the policy condition, but it does not remediate existing resources that are already non-compliant.
C
Best answer
DeployIfNotExists
DeployIfNotExists is designed to deploy a template or resource when a non-compliant condition is detected. In this case, it would automatically create the missing diagnostic settings on each VM, achieving automatic remediation.
D
Distractor review
Modify
Modify can change properties of an existing resource, but diagnostic settings are a separate child resource, not a property. DeployIfNotExists is the appropriate effect for deploying a new resource like diagnostic settings.
Common exam trap
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Technical deep dive
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer is building a serverless application that requires integration with an on-premises SQL Server database for real-time data processing. The on-premises network is connected to Azure via a site-to-site VPN. Which Azure service would allow the function to securely access the on-premises database without exposing it to the public internet?
Question 2
A solutions architect is designing a storage solution for a large media company. The company needs to store video files that are accessed infrequently but must be retained for several years for compliance. Which two Azure storage options meet these requirements? (Select two.)
Question 3
A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?
Question 4
A company wants to enforce a set of security policies across all their Azure subscriptions. They have created several individual policy definitions. Which Azure construct should they use to group these policies together and assign them as a single package?
Question 5
A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?
Question 6
A company develops a web API that runs on Azure App Service. The development team wants to deploy a new version of the API to a staging environment, run integration tests against it, and then gradually shift production traffic to the new version. If any issues are detected, they want to immediately roll back to the previous version without redeploying. Which Azure App Service feature should the team use to meet these requirements?
FAQ
Questions learners often ask
What does this AZ-900 question test?
Standard ACLs match source addresses.
What is the correct answer to this question?
The correct answer is: DeployIfNotExists — Azure Policy has several possible effects. The DeployIfNotExists effect is specifically designed to automatically deploy a required resource or configuration when the policy engine detects that it is missing. In this scenario, diagnostic settings are a child resource of a VM, and DeployIfNotExists will create them on any non-compliant VM. Audit only reports compliance status; it does not make any changes. Deny prevents the creation of non-compliant resources but does not fix existing ones. Modify can alter properties of an existing resource but is not the best fit for deploying child resources like diagnostic settings.
What should I do if I get this AZ-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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